97 



Agrotis balanitis, Grote, Plate 3, fig. 14, 9 . 



2 . — Resembles repentis in general appearance, color, and size ; fore wings a 

 little darker with a pale costal reflection ; ordinary lines blackish, perpendicular ; 

 t. a. with the outer component line black, dentate ; orbicular, moderate, a little 

 pointed outwardly ; reniform incomplete, both spots concolorous, with narrow 

 black annuli and pale gray inner edging. Median shade apparent on the 

 median space below the nervure. T. p. line irregular, incompletely geminate, 

 unevenly dentate, running inwardly below median nervure, and hence differ- 

 ing from repentis, where it is even, nearly perpendicular, and does not run 

 in interiorly. Subterminal line much as in repentis, preceded by a dark 

 shade. Terminal line broken into dots ; fringes concolorous ; hind wings 

 pale smoky, without marks or border ; fringes whitish, with a faint interior 

 line. Beneath, pale, with discal dots, and a common transverse line broken 

 into nervular marks on the hind wings. 



Bxjmnse, 40 m. m. Habitat, Colorado Territory (coll. Tlieo. L. 

 Mead, No. 34). 



This species offers a resemblance to Lycarum H.-S., fig. 122. 

 Beneath, the abdomen, in A. balanitis, is laterally marked by a stig- 

 matal black line. 



Agrotis atrifrons, Orote. 



$ . — Antennae simple, scaled, ciliate, with scattered hairs, not bristled 

 beneath ; ocelli ; eyes naked ; spurs short on middle and hind tibiae ; fore 

 tibiae spinose. Head Avith pale supra-caputal vestiture projected between 

 the antennae ; the clypeal scales are black and contrasting. Collar with a 

 black line. Thorax above ashen. Fore wings ashen shaded with reddish 

 brown ; ornamentation simple. Transverse lines narrow, black, single, con- 

 tinued, t. p. line narrowly lunulate. Nervules marked terminally with dark 

 scales. No trace of the ordinary spots. Median vein at base marked with 

 blackish scales. The wing is shaded at base, above and below the m. nervure, 

 with reddish ; again diffusely over the discal cell, ^.nd less obviously on the 

 median space below the median nervure. Subterminal space dark, shaded 

 with reddish brown, and bringing the subterminal line into relief by its 

 contrast with the purely pale ashen terminal space. Hind wings white, 

 smoky along the hind border, and the veins are also marked ; fringes white, 

 with a faint smoky interior line. Beneath whitish, costal region of hind wings 

 irrorate, no discal dots on either surface ; the primaries show a faint discal 

 dot, and there is a common blackish exterior line distinctly marked on costal 



BIIL. BDF. SOC. NAT. SCI. (13) JULY, 1873. 



